Bottle cap forming die



Sept. 22, 1931. VOGELSANG BOTTLE CAP FORMING DIE Filed June 5. 1930 2 Sheets-Sheet 1 P 1931. L. VOGELSANG 1,823,961

BOTTLE CAP FORMING DIE Filed June 5, 1930 2 Sheets-Sheet 2 Patented Sept. 22. 1931 UNITED STATES PATENT OFFICE LUDY VOGELSANG, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO LYDIA KOCH, OF

- NEW YORK, N. Y.

BOTTLE CAP FORMING DIE Application filed .Tune 5,

My invention relates to improvements in dies for making bottle caps having a depending corrugated circumferential flange forming the subject matter of an application bearing date the 21st day of May, 1930, and Serial Number 454,295, and the object of the invention is to devise a die particularly adapted to produce a bottle cap or closure with a recetsed or dished top and the corrugated depending flange to fit over the top, rim or flange of the neck of a paper bottle having a tapered-upper portion corrugated.

My invention consists of an upper die havinga circular circumferential flange and t5 dished bottom and an annular roove extending above the circumferential ange and provided with peripheral recesses. The upper die is also provided with a supplemental collar designed to fit upon the shaft of the upper an die and have vertical movement thereon. The invention further consists of a lower coacting die comprising a central shaft preferably resiliently supported at the bottom and having a flanged head which is provided with an 11 upwardly extending projection designed to coact with thedished portion or recess of the upper die and a series of detents pivotedm recesses formed in the flanged head, the upper portion of the detents being so shaped that when the upper die is depressed such detents will coact with the circular flange of the upper die, as well as the annular recesses in the groove immediately above the circumferential flange so as to form up the corrugated flange of. the closure cap, as hereinaftermore particularly explained.

Fig. 1 is a vertical elevation of my improved die for forming up the vcorrugated tflanged cap, the lower portion being in secion. a

Fig. 2 is a similar view for the most part in section.

Fig. 3 is a plan view of the lower die in the position shown in Figure 1.

Fig.2. Y

Fig. 5 is a perspective detail of the circular- Fig. 4 is a sectional plan on the line m z 1930. Serial No. 459,367.

7 Fig. 6 is a view of the cap partially formed up, and

Fig. 7 is a View of the cap as completely formed up.

Like characters of reference indicate 'corresponding parts in the different views.

1 is the upper plunger or male die which is formed near the bottom thereof with an a11- nular groove 2 having a series of depressions 3 extending around the same, as indicated. The bottom of the die 1 is in bead form 1 and is provided with a dished portion or depression or recess 5. 6 is a supplemental die annular in form and provided with peripheral teeth 7 inclined inwardly and designed to partially form up the cap, as will hereinafter appear. The die 6 is provided with a forked lever 8 which is connected to the die by pins 9 diametrically located. The forked lever 8 is merely shown as one means for lowering and raising the die.

10 is the lower or female die which is provided with the central orifice 11 having the upper enlargement 12 terminating at the top in the bevelled portion 13. 14 is a plunger supported preferably by the spiral spring 15 or other resilient means and having an upper enlargement 16 provided circumferentially with recesses 17 at its upper portion.

18 are a series of detents corresponding in number to the recesses 17 and pivoted at their lower'ends in such recesses on a ring pivot 19 which extends around through the recesses and detents.

The detents 18 are provided attheir upper ends with bosses 20 corresponding in number to the recesses 3 in the groove 1 of the upper die with which they are designed to register when the upper die is brought down, as shown in Figure 2. The upper ends of the portions or enlargement 16 is provided with a circular projection 16, which is designed to -register closely with the recess 5 at the bottom of the upper die.

The number of detents and necessarily the bosses and the corresponding recesses 2 are the same as the number of corrugations in the cap, as will hereinafter appear.

21 is a circular piece of paper forming the blank from which the cap is made. In order to form upthe cap the blank 21 is placed on the top of the detents of the lower die. The v supplemental die 6 is then brought down and the cap partially formed up, as indicated in Figure 6. The main plunger dieis then brought down into the position shown in Figure 2, when the cap is formed up as-shown in section in this figure and in perspective detail as shownin Figure 7. The plunger die 1 and the supplemental die 2 may then be raised by any suitable means and at the same time the plunger 11 with the detents in the head thereof is raised by the spring 15 and the cap may then be removed from the lower edge of the plunger die, when it is raised to the position as shown in Figure 1.

The arrangement of the detents in the lower die and the action of such detents in forming the cap will be readily'understood on reference to Figures 3 and 4.

Although I have only shown the die capable of operation by hand it will of course be understood that automatic means may be provided to form up a corrugated cap such as indicated in Figure 7. Again, although in this specification I have shown the con-' struction of dies. in the form which I consider preferable it will of course be understood that variations in form and operation may be made withoutdeparting from the spirit of.

my invention. L

What I claim as my invention is 1; A die for making bottle-caps having a depending corrugated circumferential flange I tially arranged and pivoted at the upper portion of the enlargement and provided with bosses designed to coact with the recesses in the grooves of the upper die, and means for spreading thebosses diametrically and circumferentially to receive the circular blank designed to form the cap and for retracting .the detents when the upper die is brought down so as to bring the groove and recesses thereof opposite the bosses of the detents.

1 2. A dle for making bottle caps having a depending corrugated circumferential flange comprisin an upper die having a bottom circumferentlal flange and an annular groove located above the same and provided with aseries of recesses, and a lower die having a shaft 1 and an enlargement at the upper end thereof,

and a series of detents circumferentially arranged and pivoted at the upper portion of .the enlargement and provided with bosses designed to coact with the recesses in the grooves of the upper die, means for spreading the bosses diametrically and circumferentially to receive the circular blank designed the when the upper die is brought down so as to bring the groove and recesses thereof opposite the bosses ofthe detents, and asupplemental die surrounding the upper die and provided with peripheral downwardly 'inclined teeth.

3. A die for making bottle caps having a I depending corrugated circumferential flange .upper die when depressed, and a series of detents circumferentially arranged and pivoted at the upper portion of the enlargement and "provided with bosses designed to coact with the recesses in the grooves of the upper die, and means for spreading the bosses diametrically and circumferentially 'to receive the circular'blank designed to form the cap andfor retracting the detents when the upper die is brought down so as to bring the groove and recesses tthereof opposite the bosses of the detents.

4. A die for making bottle caps having a vdepending corrugated circumferential flange comprising an upper die having a bottom circumferential flange and an annular groove located above the same and provided witha series of recesses, and a lower die having a shaft and an enlargement at the upper end thereof, and a series of detents circumferentially arranged and pivoted at the 11 per portion of the enlargement 'andprovi ed with bosses designed'to coact with the recesses in ooves of the upper die, a spiral spring located at the bottom of the shaft, the lower die having an enlargement provided with a bevelled upper portion into which the shaft of the lower die fits and has movement.

-5. The combination with the upper die having a lower circumferential flange and groove provided with a series of recesses, of a lower dieprovided with a series of detents pivotally supported andprovided with bosses 7 to coact with recesses in the groove of the u per die and designed to receive the blan and means for bringing the upper die into operative relation with the lower die and for expanding the detents' upon the upward movement of the upper die and retracting them upon the lower limit of movement thereof.

i ,LUDY VOGELSANG.

to form the cap and for retracting the detents 

